R&D投入高新技术产品出口的曲线估计分析

Analysis on the Curve Estimation of the R&D high-tech products export

现有文献关于R&D投入对高新技术产品出口的促进作用的研究表明,二者存在着正相关关系,增加R&D投入可以促进高新技术产品的出口,实证分析方法主要采用的是线性回归模型。本文研究的目的在于采用曲线估计方法建立二次曲线模型和线性回归模型进行比较,发现二次曲线模型拟合优度更高,并且R&D投入对高新技术产品出口的促进作用存在拐点,不同行政区域的拐点有所不同,在此,进一步分析原因及提出改善对策。

The existing literature on the role of R&D investment in promoting high-tech exports shows that there is a positive corre?lation between them,which is that increasing R&D investment can promote the export of high-tech products.The empirical analysis mainly uses a linear regression model,while the purpose of this paper is to use curve-fitting estimation method to establish the quadrat?ic curve model and linear regression model for comparison.It is found that the quadratic curve model has a higher degree of fit,and there is a turning point in the promotion effect of R&D investment on high-tech product export.For Different administrative regions,the turning point is different,and this paper further analyzes the reasons and puts forward improvement measures.